[ns] How to monitor TCP usable send window

[Mirek Walkiewicz <mirek@cs.rmit.edu.au>]

Hi ns-users,

Can someone tell me, please, how to access/monitor the TCP current window 
size which, at any time during transmission, is equal to cwnd_ or window_ 
parameter, whichever is smaller. Monitoring just the current congestion 
window (cwnd_) variable does not appear to be the correct way, as it can 
(at least in my simulations) exceed the receiver's advertised window (window_).

Many thanks in advance,
Mirek